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1310 Villigera (1932 DB)
Classification: Mars-crossing Asteroid          SPK-ID: 2001310
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3557134045704307 3.5512e-08  
a 2.392198462016312 7.3959e-09 AU
q 1.541261402684342 8.5762e-08 AU
i 21.07353988814484 7.0237e-06 deg
node 357.331123491453 1.2513e-05 deg
peri 88.70334370452596 1.7993e-05 deg
M 170.4310237675521 1.1035e-05 deg
tp 2456360.705666787380
(2013-Mar-09.20566679)
3.9643e-05 JED
period 1351.432121130017
3.70
6.2673e-06
1.716e-08
d
yr
n .2663840783205461 1.2354e-09 deg/d
Q 3.243135521348283 1.0027e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      801  
   data-arc span      30390 days (83.20 yr)  
   first obs. used      1932-02-28  
   last obs. used      2015-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53664  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:34:09  

Additional Information
 Earth MOID = .715543 AU 
 T_jup = 3.358 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.45 mag n/a PDS3 (MPC 17261)  
rotation period rot_per 7.830 h n/a LCDB (Rev. 2015-May); Warner et al., 2009 Published Reference List:
[Koff, R.A. (2002) Minor Planet Bul. 29, 25-26.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
B-V BV .905 mag .020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=1; phase=24.95 deg.
U-B UB .445 mag .023 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=1; phase=24.95 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 4 color indices

1310 Villigera (1932 DB)          Discovered 1932-Feb-28 by Schwassmann, A. at Bergedorf
and A. Wachmann.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1932 DB = 1964 TC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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